What drives Helena Valley Northwest’s History grade
On its age, its old homes and the National Register, Helena Valley Northwest is among the newest of U.S. towns. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
D−
HistoryA character grade: shown, never part of Helena Valley Northwest’s overall grade.
Montana towns list more on the Register than most of the country (a typical Montana town has 12.7 per 10,000 residents, the U.S. 2.4), so Helena Valley Northwest’s 0.0 sits below most of its state (16% of Montana towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±0.9 points) is firm at this size.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Helena Valley Northwest’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Helena Valley Northwest. Tap a year, or press play to watch the town change.
1899Helena and Vicinity sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Helena Valley Northwest.
The story so far
Helena Valley Northwest, in brief
Wikipedia doesn’t have a history of Helena Valley Northwest yet. The photos, dates and memories neighbors add here are how it gets written.
Helena Valley Northwest is a census-designated place (CDP) in Lewis and Clark County, Montana, United States. As of the 2020 census, Helena Valley Northwest had a population of 4,705. It is part of the Helena Micropolitan Statistical Area.
Between the 2010 and 2020 censuses its population grew from 3,482 to 4,705 (+35%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Helena Valley Northwest, 1885 to 1899
Woven from the archive, old maps, post office records, the National Register and the people born here.
How does Helena Valley Northwest rank for history?
Helena Valley Northwest is among the newest of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Helena Valley Northwest?
0.0% of Helena Valley Northwest’s homes were built before 1940 (Census estimate), against a typical 13% for a Montana town; the median home was built in 2001.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
